Cumene Sulfonic Acid from Germany
Cumene sulfonic acid, derived from sulfonation of cumene (isopropylbenzene), is an aromatic sulfonated hydrocarbon. Classified in HTS 2904.99.40.00 as specified in additional U.S. note 3 to section VI. Serves as intermediate for detergents and phenolic resins.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Confirm alkyl substitution pattern via NMR or GC-MS for accurate description
• Ship in stabilized form only if necessary for transport per chapter notes
• Prevent aggregation with anti-caking agents that alter classification